Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

19998991 (number)

19998991 is an odd 8-digits prime number following 19998990 and preceding 19998992. In scientific notation, it is written as 1.9998991 × 10^7. The sum of its digits is 55. It has a total of 1 prime factors and 2 positive divisors. There are 19998990 positive integers (up to 19998991) that are relatively prime to 19998991.

Interesting facts

19998991 has 2 divisors, whose sum is 19998992
The reverse of 19998991 is 19989991
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1

Name

Name	nineteen million nine hundred ninety-eight thousand nine hundred ninety-one

Notation

Scientific notation	1.9998991 × 10^7
Engineering notation	1.9998991 × 10^6

Prime Factorization of 19998991

Prime Factorization 19998991

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	19998991	Product of the distinct prime numbers

The prime factorization of 19998991 is 19998991. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 2, 95, 42, 803, 254, 4796, 4697, 41097, 88597, 890620, 279807, 4406698, 8535934, 79059077, 6134695, 85585082, 603295229, 9573385113, 1550554880

Basic calculations (n = 19998991)

Multiplication

n×y

n×2	39997982
n×3	59996973
n×4	79995964
n×5	99994955

Division

n÷y

n÷2	9999495.5
n÷3	6666330.3333333
n÷3	4999747.75
n÷5	3999798.2

Exponentiation

n^y

n²	399959641018081
n³	7.9987892610838E+21
n⁴	1.5996771444331E+29
n⁵	3.1991928814424E+36

Nth Root

^y√n

²√n	4472.0231439473
³√n	271.4371968371
⁴√n	66.873187032975
⁵√n	28.853706975428

Divisors of 19998991

1, 19998991

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	19998992	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	9999496	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4472.0232557535	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.999999899995	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 19998991 can be divided by 2 positive divisors. The sum of these divisors (counting 19998991) is 19998992, the average is 9999496.

Base conversion 19998991

Base	System	Value
2	Binary	1001100010010100100001111
3	Ternary	1101122001110101
4	Quaternary	1030102210033
5	Quinary	20104431431
6	Senary	1552351531
8	Octal	114224417
10	Decimal	19998991
12	Duodecimal	68455a7
16	Hexadecimal	131290f
20	Vigesimal	64jh9b
36	Base36	bwnbj

Cryptographic Hash Functions

md5	249bef6dc5df4cec91033a37e6248996
sha1	a42e550f9867602f0b499655aff972fd6389af7e
sha256	9c32141b6d494bebbec5074a4606af910832aaaa585bf27b38d8b99db59e4f04
sha512	e1d69a11eb57d00fa3a0bc87964b9bff6f572fe70ce4421e03cd3d755b4350a5f7da12b2625a7aae5a7645dc5ec8c24e9a7c4bcaaa5ab41955d489dc01e547a0
ripemd-160	e2619f39bb3071aec9795d022877690ca17f9730

19998991 as geometric shapes

Circle

Radius = n

Diameter	39997982
Circumference	125657366.40962
Area	1.2565102699548E+15

Sphere

Radius = n

Volume	3.3505250106979E+22
Surface area	5.0260410798193E+15
Circumference	125657366.40962

Square

Length = n

Perimeter	79995964
Area	399959641018081
Diagonal	28282844.305977

Cube

Length = n

Surface area	2399757846108486
Volume	7.9987892610838E+21
Space diagonal	34639268.512113

Equilateral Triangle

Length = n

Perimeter	59996973
Area	1.7318760480508E+14
Altitude	17319634.256056

Triangular Pyramid

Length = n

Surface area	1.7318760480508E+14
Volume	9.4266635463242E+20
Height	9427614.7686592